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Page 480In geodetic surveys, which may cover hundreds of square miles, the curvature of the earth's surface has to be taken into consideration.
Such work requires a more complicated transit, called a theodolite, which can perform much more precise measuring.
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This is actually helpful,.. wish there was more
Page 480
In geodetic surveys, which may cover hundreds of square miles, the curvature of the earth's surface has to be taken into consideration.
Such work requires a more complicated transit, called a theodolite, which can perform much more precise measuring.